We hereby consent to the incorporation by reference in the Registration Statements on Form S-3 (No. 333-112019, 333-112018, 333-136249 and 333-147929) and Form S-8 (No. 333-34230, 333-147572 and 333-159850) of LivePerson, Inc. of our reports dated March 15, 2011, relating to the consolidated financial statements and the effectiveness of LivePerson, Inc.’s internal control over financial reporting, which appear in this Form 10-K.